For the past 3 years I' ve used a scent-lok facemask. For the 14 years before that, I use a cotton mask with an oval opening for my eyes, the same style as the scent-lok. During the winter temps-15-20 or below, I use a scent-lok, with a knit mask over it.

Just a note, if you are using scent-lok without a scent-lok mask, don' t bother using the scent lok in the first place. Most of your heat and scent goes right out your head.

Jeff..U.P. of Michigan